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 App Development in Wiesbaden for the development of mobile applications and websites – KNGURU

Are you looking for an experienced app agency in Wiesbaden that transforms your idea into reality with strategic foresight and technical excellence? We reliably support you from the initial consultation to a successful launch.

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Our Projects

Over 200+ design projects

300.000+
App Downloads for projects we have managed.
5.0
50+ Reviews

Not just developers, but true consultants for your app!

 In over 7 years, we've learned what truly makes apps successful. That's why we don't just develop; we also support you with concept, design, and marketing – as a team by your side.

Team Vera image
Team Ivan image
50+
Designers

With extensive project experience, we support companies of all sizes – from ambitious startups to established businesses in Wiesbaden. We understand what drives your target audience and transform this knowledge into app solutions that clearly and sustainably stand out from the competition.

Excellent digital products only emerge when development, design, and strategy grow together from the outset. Our developers, UX designers, and marketing experts work as a well-coordinated team – ensuring consistent results without unnecessary coordination loops. We work agile, utilize modern technologies like Flutter for cross-platform solutions, and ensure that your app remains stable, up-to-date, and high-performing in the long term.

This is what  app development looks like in practice.

From the initial product idea to well-thought-out interfaces and scalable systems – our projects demonstrate how precise development and consistent design drive businesses forward.

Our own startup
30,000+ users

The app for anyone who loves cars and motorsport!

DeepDays is the app for car events, community voting, and digital ticketing. From the initial idea to UX UI design and technical implementation, we developed the product entirely ourselves and quickly scaled it to over 30,000 users.

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A festival that lets you play along.

For the Glücksgefühle Festival, we developed an app that offers 200,000 visitors interactive experiences – from ticketing and gamification to live communication.

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UX/UI Design
Web App
Our Own Startup
10,000+ Users

Club Management for Leipzig's Night Owls

Clubkit is our white-label solution for smart ticketing. We built it to work like the best bouncer in town.

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clubkit logo
UX/UI Design
Mobile App
Web App

The platform for pet owners and pet professionals

With PetPlanner, pet owners can find suitable service providers nearby, book appointments online, and keep track of their pet's health data, appointments, and important information at all times.

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Recruiting Software on Autopilot

Recruiting is often chaotic and manual. With Funellab, we built a platform that automatically filters, organizes, and perfectly matches applicants.

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Web design
Artificial Intelligence

Energy that adapts to your life.

Clever-PV wanted more than just an app – they wanted to give households control over their energy. Our task: a UX and UI design that makes data clear, intuitive, and understandable. 

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Clever pv logo

Complex CAD workflows made simple & intuitive.

Mensch und Maschine stands for CAD and BIM software. We have developed an intuitive solution that simplifies complex processes and seamlessly connects teams.

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mensch und maschine logo
UX/UI Design
Product Refresh

Cook along with your favorite creators

Scoops connects food creators with their community in a new way. Influencers share their recipes directly in the app, and their followers can unlock them via a subscription, cook them, and become part of an active food community.

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From a UI dinosaur to a modern management hub.

Avviso manages parking violations and reminders – but its UX/UI still looked like Windows 98. We streamlined the user experience and brought the software into 2024.

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avviso logo
UX/UI Design
Product Refresh

Clearly manage thousands of vehicles

Smartmove needed a solution for efficient vehicle fleet management. We developed an intuitive interface with smart automations – understandable in just 10 seconds.

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UX/UI Design
Website Design
Web App

App Development in Wiesbaden: From Design to Marketing

Developing a powerful app for your business doesn't have to be an overwhelming undertaking. Our proven process provides clarity at every step.

01

Concept phase

Concept development, user experience design, and prototype creation

Every powerful app starts with a clear concept. Together, we define target audiences, prioritize features, and develop a user-centric design concept. User research, competitor analysis, and usability tests directly inform the design. Using Figma, we build interactive prototypes that can be tested early and incorporate feedback immediately. If desired, we can start with an MVP to evaluate real user behavior and drive targeted further development.

free
02

Platform-Specific Development

App development in Wiesbaden for Android and iOS

We develop agile – Scrum and Kanban ensure transparency, structure, and short iteration cycles. Whether native with Swift and Kotlin or cross-platform with Flutter and React Native: Our apps run reliably and performantly on all relevant devices. Ongoing code reviews, automated tests, and targeted security checks ensure that your product makes no compromises in terms of technology and quality.

03

Robust Backend Architecture

Scalable and powerful backend solutions for your app

Every stable app is backed by a well-designed backend. We rely on cloud infrastructures like AWS, Firebase, and Supabase, as well as proven frameworks such as Node.js and Django. Serverless architectures and microservices guarantee efficient operation – even when user numbers surge. All data is stored GDPR-compliant in powerful SQL or NoSQL databases.

04

Targeted Marketing

First-class marketing for your native apps and web applications

A technically sophisticated app needs the right platform. We support you with App Store Optimization, search engine marketing, and social media ads. Our teams analyze the market and target audience, develop keyword strategies and data-driven campaigns – from retargeting and influencer collaborations to content marketing – for stable, sustainable growth in Wiesbaden and far beyond.

Louis Nell

CEO

Louis was never one to do things by halves. As a developer at the railway company, he programmed software that revolutionized the system – and was quickly scrapped precisely for that reason. Frustration turned into opportunity: he quit and founded KNGURU. Today, Louis and his team develop digital products that offer real value – and aren't hindered by corporate politics.

Team Louis image

Ivan Prosic

Lead designer

Four years ago, KNGURU was looking for a designer. Ivan responded on Reddit, participated in a design challenge despite a packed schedule – and prevailed. Today, he's our Lead Designer and, according to him, can even operate Figma in his sleep. He has a knack for pixels – and incredible patience for clients who "just want a quick tweak."

Team Ivan image

Vera Grosse

Project Manager

Vera came as an intern – and simply never left. Today, she juggles clients, projects, and designers simultaneously (and still finds time for a shisha). She's the only person on the team who voluntarily opens Excel spreadsheets – and even with enthusiasm. Plus, Vera can implement project plans faster than Ivan can swim (which he reluctantly admits).

Team Vera image

Strahinja Nikolic

Graphic and Product designer

Strahinja is not just a designer, but a true go-getter. He builds his own businesses on the side, thinks like a founder, and knows exactly how UX becomes not just beautiful, but profitable. With KNGURU for years, indispensable for years. Always by his side: his dog Bebba, our unofficial team mascot (no, that's not Bebba in the photo).

Team Strahinja image

+ more Kngurus, 
when you need them.

Lean or XXL? We scale with you. If your project needs more power, we bring in specialists. Developers, strategists, motion designers – all ready when you need them. Kngurus on demand!

Founders & Companies, who have entrusted us with their ideas & apps.

Good UX/UI design is not just about the outcome, but also about the collaboration that leads to it. Read here how our clients experienced their journey with us.

5.0
1200+ reviews
Davide Faga

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Do you want to have an app developed that truly stands out? We are your experts in Wiesbaden!

Do you have a great idea but no idea how to implement it technically? No problem! Our team in Wiesbaden develops custom apps that inspire. Whether you're a startup or an established company – we bring your vision to the screen. Let's work together to make your app a success. Get a free consultation now!
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What are the advantages of custom app development?

Custom apps enable tailored solutions that are perfectly aligned with business models.

How long does app development take?

The duration depends on the complexity – simple apps are ready faster, while extensive projects require more time.

Which technologies are used for app development?

Companies rely on modern frameworks like Flutter, React Native, or native development environments.

Which platform is the best choice?

The choice between iOS, Android, or cross-platform depends on the target audience and business goals.

What role does App Store Optimization play?

ASO helps increase an app's visibility and attract more users.

What does your app cost?

Generally, the more features your app is intended to have, the higher the development costs will be. Therefore, we recommend starting with the leanest and most clearly defined version possible and then expanding the app strategically later. This approach helps reduce costs, achieve initial results faster, and integrate user feedback early into further development.

Start your estimate

Answer a few quick questions and get an estimate for your app's cost in under 2 minutes.

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1/6
What category would you place your app in?

To estimate an app's cost, the underlying idea is particularly crucial for defining its scope.

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2/6
How many different
screens does your app need?

The number of screens your app will include provides a good basis for estimating development costs.

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3/6
Can users register in your app?

User profiles and their interactions often account for a significant portion of the development effort

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4/6
Do you already have a design for your app?

The design is the blueprint for every app. If you don't have a design ready yet, we'd be happy to help you with that too.

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5/6
Do you need a dashboard?

With your own dashboard, you always have all your app's data in view and can also create and manage content yourself.

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6/6

Book your free initial consultation now.

Based on similar projects we've supported in the past, we estimate your project will fall within a price range of approximately 65.000€ to 85.000€

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6/6
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Next step

Get a free initial consultation now.

65.000€ - 85.000€ 

Want to discuss the possibilities for your app with us?
Let us know!

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App Agency Wiesbaden- Innovative App Development for All Platforms

progressive web apps

A Combination of Website and App

If your project is clearly defined and you want to launch efficiently, a Progressive Web App (PWA) might be the smartest choice. PWAs use modern web technologies for offline capabilities and can be accessed directly via a shortcut – without store installation.

PWAs are not available in app stores and don't always achieve the full native user experience. However, they cover all platforms with a shared codebase, can be developed from existing web solutions, and function on desktops as usual. For Wiesbaden companies that quickly need a digital solution – such as a service portal or an internal tool – a PWA is the fastest and most cost-effective entry point. If demand grows, the foundation can easily be expanded into a full-fledged hybrid app.

cross-platform apps

One App for All Devices

For those who want to offer a native app experience on all platforms without developing each one individually, cross-platform development is the ideal solution. A shared codebase fully covers iOS and Android – efficient, low-maintenance, and future-proof.

We favor this approach and rely on Flutter and React Native. Modern cross-platform apps are now fully equivalent to their native counterparts in terms of functionality, performance, and design.

Programming and  App Development in Wiesbaden: KNGURU, your specialist for custom apps

Innovation, Expertise, and Tailored Solutions

For app projects in Wiesbaden, individuality and strategic fit are our top priorities. We don't develop generic solutions; instead, we create concepts tailored to each company, its goals, and its users.

Every project begins with thorough consultation. We analyze the market environment, identify opportunities, and develop solutions that create genuine USPs – all tied to a design that not only appeals to users but truly convinces them.

In-house App Developers for Continuous Support

The go-live marks the start of ongoing operations. Regular updates, bug fixes, and responding to user feedback require a team that knows and understands the app inside out.

At KNGURU, all developers are permanently employed – from project management to implementation. Your product remains in the same hands, sprint after sprint, version after version.

App Development Experts

Outstanding digital products require more than just programming – design, backend, and marketing must seamlessly integrate. Distributing these areas among external individual providers leads to a loss of coherence, speed, and control.

As a full-service agency, we bring all competencies together in one team. Developers, designers, and marketing experts work under one roof at KNGURU – with a common goal: your success.

Efficient App Development: The Technologies Behind Our Apps

Compelling mockups with Figma

To ensure your app is on the right track from the start, we involve you early and actively in the design process. Clickable prototypes make concepts tangible – long before the first development resources are committed.

We rely on Figma: fast, collaborative, and cost-efficient. Prototypes can be intuitively tested and immediately refined. The final design is exported as HTML and seamlessly integrated directly into the implementation.

React.js for boundless app development

Once the prototype is approved, technical implementation begins – consistently based on the React ecosystem. React.js provides flexible, component-based frontends, Next.js optimizes server-side rendering for faster loading times, and React Native enables cross-platform mobile apps from a shared codebase. This means growing requirements won't necessitate a complete rebuild – your investment remains protected long-term.

Reliable backend with AWS and Firebase

After launch, data is generated – and this data must be stored reliably and securely, even if usage increases significantly.

We minimize operational overhead through platforms like AWS and Firebase, which expertly handle peak loads and largely manage backups and data security independently – allowing you to fully concentrate on further developing your app.

App development with React Native and cloud technologies.

We rely on state-of-the-art technologies in app development to ensure your app can handle high user numbers.

Front-end
React Native
React
Next.JS
Back-end & Infrastructure
Firebase
Node.JS
Supabase
Railway
Integrations
RevenueCat
Stripe
Google APIs
Github
Design & Prototyping
Figma
FigJam
Illustrator
After Effects
AI Integrations
Gemini
Claude
ChatGPT

Your 30-minute meeting with real experts.

Whether it's an idea or an existing app – we'll tell you honestly where you stand. All of this is free, based on experience from over 100 projects and our own app with 30,000 users. Book your meeting now and get to know us!

How can we reach you?
Planned budget
Legal matters
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The first step is complete!

We have received your inquiries and will get back to you as soon as possible with more details. All the best, your KNGURU Team!

Knguru enjoying a meal
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